Question

show that total energy is conserved if a ball of mass m is thrown downwards from a height h

Answer 1

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The law of conservation of energy states that energy can neither be created nor destroyed, it can only be transformed from one form to another.
In this case the potential energy gets converted to kinetic energy.Also, at any point P.E+K.E will remain the same.

Answer 2

The law of conservation of energy states that energy can neither be created nor destroyed, it can only be transformed from one form to another.
In this case the potential energy gets converted to kinetic energy.Also, at any point P.E+K.E will remain the same.